1 /* 2 * Copyright (c) 2024 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef API_CORE_PROPERTY_TOOLS_PROPERTY_API_IMPL_H 17 #define API_CORE_PROPERTY_TOOLS_PROPERTY_API_IMPL_H 18 19 #include <cstddef> 20 #include <cstdint> 21 22 #include <base/containers/array_view.h> 23 #include <base/namespace.h> 24 #include <core/namespace.h> 25 #include <core/property/intf_property_api.h> 26 #include <core/property/intf_property_handle.h> 27 28 CORE_BEGIN_NAMESPACE() 29 struct Property; 30 31 template<typename BlockType> 32 class PropertyApiImpl : public IPropertyApi, protected IPropertyHandle { 33 public: 34 PropertyApiImpl(); 35 PropertyApiImpl(BlockType* data, BASE_NS::array_view<const Property> props); 36 ~PropertyApiImpl() override = default; 37 38 IPropertyHandle* GetData(); 39 const IPropertyHandle* GetData() const; 40 41 uint32_t GetGeneration() const; 42 // IPropertyApi 43 size_t PropertyCount() const override; 44 const Property* MetaData(size_t index) const override; 45 BASE_NS::array_view<const Property> MetaData() const override; 46 IPropertyHandle* Create() const override; 47 IPropertyHandle* Clone(const IPropertyHandle*) const override; 48 void Release(IPropertyHandle*) const override; 49 50 protected: 51 const IPropertyApi* Owner() const override; 52 size_t Size() const override; 53 const void* RLock() const override; 54 void RUnlock() const override; 55 void* WLock() override; 56 void WUnlock() override; 57 uint64_t Type() const override; 58 59 private: 60 const IPropertyApi* owner_ { nullptr }; 61 BlockType* data_ { nullptr }; 62 BASE_NS::array_view<const Property> componentMetadata_; 63 uint64_t typeHash_ { 0 }; 64 uint32_t generationCount_ { 0 }; 65 #ifndef NDEBUG 66 mutable uint32_t rLocked_ { 0 }; 67 mutable bool wLocked_ { false }; 68 #endif 69 }; 70 CORE_END_NAMESPACE() 71 72 #endif // API_CORE_PROPERTY_TOOLS_PROPERTY_API_IMPL_H 73